The rare occurrence and severe consequences. Malformation of the lungs in a teenager — arteriovenous malformation of the lower lobe of the left lung

Arteriovenous malformation of the lungs is a congenital vascular anomaly characterized by the presence of a direct pathological connection between the branches of the pulmonary artery and the pulmonary veins, resulting in the formation of an intrapulmonary shunt from right to left and the shunting of unoxygenated blood into the arterial circulation. This lesion, first described by T. Churton in 1897, remains a relevant problem in modern thoracic surgery and pulmonology due to its rarity, the absence of pathognomonic symptoms, and the wide range of clinical manifestations — from asymptomatic course to life-threatening complications, including hemorrhagic events, paradoxical embolism, abscess, and cerebral infarction. Due to the rarity of the disease, the difficulty of its diagnosis, and the serious consequences of аrteriovenous malformation, we present our own observation of a rare case of the diagnosis and treatment of arteriovenous malformation of the lower lobe of the left lung in a teenager.